Tuning the interlayer stacking of a vinylene-linked covalent organic framework for enhancing sacrificial agent-free hydrogen peroxide photoproduction.

ABSTRACT: The layer-stacking mode of a two-dimensional (2D) material plays a dominant role either in its topology or properties, but remains challenging to control. Herein, we developed alkali-metal ion-regulating synthetic control on the stacking structure of a vinylene-linked covalent triazine framework (termed sp²c-CTF) for improving hydrogen peroxide (H₂O₂) photoproduction. Upon the catalysis of EtONa in Knoevenagel polycondensation, a typical eclipsed stacking mode (sp²c-CTF-4@AA) was built, while a staggered one (sp²c-CTF-4@AB) was constructed using LiOH. The AB stacking might be induced by the Li⁺ promoted Lewis acid-base interactions with the nitrogen atoms of s-triazine units which would endow the s-triazine uni

SUBMITTER: Xie Q 

PROVIDER: S-EPMC11707676 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature